On Wed, 20 Apr 2011, reynolight wrote:
Am 20.04.2011 13:47, schrieb Michael Van Canneyt:
On Wed, 20 Apr 2011, reynolight wrote:
g: is the XP system volume. x: is the truecrypted NTFS partition. No
problem to set / get / show file attributes with Win32 GUI on both
volumes. Same with attrib.exe on console.
sysutils.FileGetAttr(g:\*) is fine, as well, but FileGetAttr(x:\*)
returns -1 as an error.
After copying a file from x: to g:, its attributes are - surprise - ok
again. Even bigger surprise: After re-copying from g: to x:,
FileGetAttr(x:\...) delivers the same correct result as on g:
FileGetAttr is not supposed to accept wildcards.
Michael.
Sorry. Just looks like wildcards here in my post. Of course,
FileGetAttr('*') doesn't work at all. To be exact with my issue, assume
a specific file x:\any.any, where x: is a mounted, truecrypted NTFS volume.
FileGetAttr('x:\any.any') returns -1, i.e. error.
After copying x:\any.any to g:\any.any, FileGetAttr('g:\any.any')
returns 32, i.e. faArchive.
After copying g:\any.any back to x:\any.any, overwriting the previous
version, FileGetAttr('x:\any.any') now returns 32, i.e. faArchive as
well, as it should have been always, since we never modified the attributes.
Trying the same on XP GUI or with attrib.exe on console, I don't see any
similar issues.
Well,
This is the implementation of FileGetAttr:
Function FileGetAttr (Const FileName : String) : Longint;
begin
Result:=GetFileAttributes(PChar(FileName));
end;
As you can see, the function returns the result of the GetFileAttributes Win32
API call.
Why this call returns -1 is something that we cannot speculate on.
Most likely seems an error in the filesystem driver.
Michael.
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